Hioki CM4003 – AC Leakage Clamp Meter with Output and External Power Supply Function

• True RMS AC measurement
• Detect minuscule leakage currents with a newly designed sensor. (Core jaw diameter up to 40 mm)
• Broad measurement range extending from leakage currents to load currents
• Complies with the performance standard set forth in IEC/EN 61557-13, an international standard on leak clamp meters
• Solve GFCI and RCD problems quickly

This AC leakage clamp meter allows you to measure from minute leakage current to load current. The user can accurately measure minute leakage current

• The 6.000 mA range is incorporated to ensure the measurement with a high resolution of 1 μA.
• High permeability magnetic material is used for the jaws.

Effects of external electromagnetic noise are minimized to enable the measurement with high reproducibility. The user can measure a wide range of current from leakage current to load current.

• Accuracy ranging from 0.060 mA to 200.0 A is ensured.
• Frequency band ranging from 15 Hz to 2 kHz

Please see a comparison of the CM4000 series clamp meters in the table below.

• Waveform/RMS output function. Waveforms and fluctuations can be recorded in combination with a recorder
• External power supply function allows continuous measurement for a long period of time using an AC adapter (part Z1013, optional)

• Regular inspections of GFCIs and RCDs
• Record measurement locations and measured values together
• Identify trip locations quickly and reliably

• Identifying intermittent trip events
• The meter records event information (times and current values) in its internal memory
• Collect data using a tablet and check for trips

• Detect minuscule leakage currents with a newly designed sensor
• The core and shielding are constructed from high-permeability magnetic materials
• The CT sensor features a uniform coil
• The CM4002/CM4003 complies with the performance standard set forth in IEC/EN 61557-13, an international standard on leak clamp meters

1. Uniform measurement sensitivity inside jaws: When affixed around a wire, sensitivity is uniform regardless of the position of the conductor inside the jaws.

2. Resistance to the effects of external magnetic fields: Shielding made of high-permeability magnetic material blocks magnetic fields from the surrounding environment.

3. Elimination of the effects of high-frequency currents: A low-pass filter eliminates high-frequency capacitive leakage currents from inverters and other equipment.